(19)

(11)

EP 3 948 360 A1

(12)

(43) Date of publication: 09.02.2022 Bulletin 2022/06 (21) Application number: 20717399.8 (22) Date of filing: 10.03.2020

(51) International Patent Classification (IPC):  G01V 1/00(2006.01) G01V 1/30(2006.01) G01V 1/28(2006.01) G01V 1/38(2006.01) (52) Cooperative Patent Classification (CPC): G01V 1/303; G01V 1/003; G01V 2200/14; G01V 2210/679; G01V 1/282; G01V 1/3808 (86) International application number: PCT/US2020/021787 (87) International publication number: WO 2020/205169 (08.10.2020 Gazette 2020/41)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 29.03.2019 US 201962826251 P (71) Applicant: BP Corporation North America Inc. Houston, TX 77079 (US)	(72) Inventors: NI, Dianne Naperville, Illinois 60563 (US) AHMED, Imtiaz Naperville, Illinois 60563 (US) BRENDERS, Andrew Naperville, Illinois 60563 (US) (74) Representative: Hamer, Christopher K.  Mathys & Squire The Shard 32 London Bridge Street London SE1 9SG The Shard 32 London Bridge Street London SE1 9SG (GB)